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2,814 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 2 in 3.

Best time to leave 8–9 am 89% arrive on time from BWI
Best single flight UA 2412 BWI 08:30 → DEN 10:25 · 90% on time Avoid UA 2012 BWI 16:23 → DEN 18:18 · 79% on time

Time of day × airport

Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).

6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
BWI
89
91
90
83
88
74
50
71
55
76
56
56
72
47
45
% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55

Pick an hour to see this route’s flights leaving then.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
United 871 87% 0.5% 70 min
Southwest 1,900 74% 1.5% 51 min
Frontier 43 – 0.0% 63 min

Dimmed: fewer than 150 flights in the year, too few to rank.

Flights, best and worst

Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.
UA 2412 BWI 08:30 DEN 10:25 90%
UA 2012 BWI 16:23 DEN 18:18 79%

All 12 flights in the current schedule

Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.
WN 4436 BWI 06:05 DEN 07:50 3h 45m 42 76% 0.0% 29 min
WN 935 BWI 07:25 DEN 09:15 3h 50m 47 83% 0.0% 43 min
WN 1080 BWI 08:20 DEN 10:15 3h 55m 16 75% 0.0% 37 min
UA 2412 BWI 08:30 DEN 10:25 3h 55m 328 90% 0.3% 69 min
WN 275 BWI 09:40 DEN 11:25 3h 45m 50 84% 0.0% 48 min
WN 937 BWI 12:50 DEN 14:35 3h 45m 34 47% 0.0% 33 min
WN 924 BWI 13:10 DEN 15:00 3h 50m 16 71% 6.2% 44 min
WN 938 BWI 15:10 DEN 17:05 3h 55m 42 65% 0.0% 74 min
UA 2012 BWI 16:23 DEN 18:18 3h 55m 327 79% 0.3% 74 min
WN 939 BWI 16:55 DEN 18:55 4h 00m 57 56% 7.0% 74 min
WN 1178 BWI 18:40 DEN 20:40 4h 00m 16 43% 12.5% 86 min
WN 4214 BWI 20:00 DEN 22:00 4h 00m 34 71% 8.8% 72 min

Nonstops by airline and airport

Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.
United BWI DEN 3h 58m 87% 0.5% 871 Flying now
Southwest BWI DEN 4h 00m 74% 1.5% 1,900 Flying now
Frontier BWI DEN 4h 03m 60% 0.0% 43 Not flying now
Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON